test.py

#!/bin/python

import math
import os
import random
import re
import sys

# Complete the minimumSwaps function below.
def minimumSwaps(arr):
    swp = 0
    n = len(arr)
    for i,j in enumerate(arr):
        if(j != i+1):
          source_idx = arr.index(i+1)
          destination_idx = arr.index(j)
          swp += 1
          arr[destination_idx], arr[source_idx] = arr[source_idx], arr[destination_idx]

    return swp


if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')

    n = int(input())

    arr = list(map(int, input().rstrip().split()))

    res = minimumSwaps(arr)
    fptr.write(str(res) + '\n')

    fptr.close()